diff --git a/.changeset/pink-houses-lose.md b/.changeset/pink-houses-lose.md
new file mode 100644
index 000000000..916232178
--- /dev/null
+++ b/.changeset/pink-houses-lose.md
@@ -0,0 +1,5 @@
+---
+"@alauda/ui": patch
+---
+
+fix: hack for rspack module federation due to `dayjs -> dayjs/esm` alias
diff --git a/package.json b/package.json
index bceb8611a..5f726c0ac 100644
--- a/package.json
+++ b/package.json
@@ -21,8 +21,6 @@
   ],
   "scripts": {
     "build": "node scripts/build.js",
-    "build:copy": "node scripts/copy-resources",
-    "build:lib": "ng-packagr -c tsconfig.lib.json",
     "build:watch": "node scripts/build.js --watch",
     "debug": "node scripts/build.js --debug --watch",
     "dev": "yarn start",
diff --git a/scripts/build.js b/scripts/build.js
index 0c326f9cd..c6936ad08 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -1,3 +1,4 @@
+const fs = require('node:fs/promises');
 const path = require('node:path');
 
 const gulp = require('gulp');
@@ -13,7 +14,7 @@ const debugNgPackage = '../ng-package.debug.json';
 
 const releaseDest = isDebug ? require(debugNgPackage).dest : 'release';
 
-function copyResources() {
+async function afterBuild() {
   const themeDest = path.resolve(releaseDest, 'theme');
   gulp
     .src([
@@ -29,6 +30,17 @@ function copyResources() {
     .src('src/theme/style.scss')
     .pipe(sass().on('error', sass.logError))
     .pipe(gulp.dest(themeDest));
+
+  // hack for rspack module federation due to `dayjs -> dayjs/esm` alias
+  const esmEntry = path.resolve(releaseDest, 'fesm2022/alauda-ui.mjs');
+  const esmEntryContent = await fs.readFile(esmEntry, 'utf-8');
+  await fs.writeFile(
+    esmEntry,
+    esmEntryContent.replace(
+      "import dayjs from 'dayjs';",
+      "import dayjs_ from 'dayjs';\nconst dayjs = 'default' in dayjs_ ? dayjs_.default : dayjs_;",
+    ),
+  );
 }
 
 const packagr = ngPackagr
@@ -40,7 +52,7 @@ const packagr = ngPackagr
 
 if (watch) {
   packagr.watch().subscribe(() => {
-    copyResources();
+    afterBuild();
 
     if (!isDebug) {
       const src = path.resolve(__dirname, '../release');
@@ -50,6 +62,6 @@ if (watch) {
     }
   });
 } else {
-  // eslint-disable-next-line unicorn/prefer-top-level-await
-  packagr.build().then(copyResources);
+   
+  packagr.build().then(afterBuild);
 }
diff --git a/scripts/copy-resources.js b/scripts/copy-resources.js
deleted file mode 100644
index c529ac209..000000000
--- a/scripts/copy-resources.js
+++ /dev/null
@@ -1,23 +0,0 @@
-const gulp = require('gulp');
-const sass = require('gulp-dart-sass');
-
-const isDebug = process.argv[2] === '--debug';
-
-const debugNgPackage = '../ng-package.debug.json';
-
-const dest = (isDebug ? require(debugNgPackage).dest : 'release') + '/theme';
-
-gulp
-  .src([
-    'src/theme/_base-var.scss',
-    'src/theme/_pattern.scss',
-    'src/theme/_var.scss',
-    'src/theme/_theme-preset.scss',
-    'src/theme/_mixin.scss',
-  ])
-  .pipe(gulp.dest(dest));
-
-gulp
-  .src('src/theme/style.scss')
-  .pipe(sass().on('error', sass.logError))
-  .pipe(gulp.dest(dest));